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Compressible dynamics, time reversibility, Maxwell’s demon, and the second law

P. A. Skordos
Phys. Rev. E 48, 777 – Published 1 August 1993
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Abstract

A tantalizing version of Maxwell’s demon is presented which appears to operate reversibly. A container of hard-core disks is separated into two chambers of equal volume by a membrane that selects which disk can penetrate depending on the disk’s angle of incidence. The analysis of this system confirms that the second law of thermodynamics requires the incompressibility of microscopic dynamics or an appropriate energy cost for compressible microscopic dynamics.

  • Received 13 August 1992

DOI:https://doi.org/10.1103/PhysRevE.48.777

©1993 American Physical Society

Authors & Affiliations

P. A. Skordos

  • Center for Nonlinear Studies, Los Alamos National Laboratory, B258, Los Alamos, New Mexico 87545
  • Massachusetts Institute of Technology, 545 Technology Square, NE43-432, Cambridge, Massachusetts 02139

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Vol. 48, Iss. 2 — August 1993

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